definitely Sennheiser earbuds, you wont regret it. I threw my iPod and iPad headphones away, they're just crap, i cant listen to any music with that shit on, sounds frigging horrible. Go for Sennheiser

I use BOSE, and i have had no problems at all, i like them and they do not hurt at all, the Ipod ones hurt my ears a lot so i don't use them at all.

I've got these and they are awesome BUT I can't use them for running because they fall out. To the OP: I think you should invest in sport headphones. I've got a pair of Sennheiser PMX80 Sport Series II Behind the Head Ear Phones For Sports and they are awesome.

Depending on your budget, you might consider wireless headphones. I use the Motorola S9s with my iPhone 3GS. Granted, it has built-in bluetooth, but you can get a small adapter that plugs into your iPod's headphone port. The S9s were among the first bluetooth headphones on the market, so they do have some technical issues, but overall it's so much nicer not to have to worry about catching the wires on weight equipment. The S9s are the "behind the head" style as well so they don't get in my way.

I use BOSE, and i have had no problems at all, i like them and they do not hurt at all, the Ipod ones hurt my ears a lot so i don't use them at all.

I've got these and they are awesome BUT I can't use them for running because they fall out. To the OP: I think you should invest in sport headphones. I've got a pair of Sennheiser PMX80 Sport Series II Behind the Head Ear Phones For Sports and they are awesome.

Do you use the Lanyard? i use mine when i go running and have no problems with it, however sometimes when i sweat a lot they feel a little loose. I'm looking to buy a new pair of head phones so ill look at the ones you recommended.

I've been disappointed with the Motorola bluetooth rokr's paired with iPhone 3G. Sound quality is just kinda average and unless both the phone and the headset have 75% or greater charge, the signal fades in and out during any kind of physical activity. It's more steady if you're just sitting still, but when does that ever happen?

Also, they won't fit with my bike helmet on, unless I cut out part of the helmet. (Seems like a bad idea.) This may be a problem with many over-the ear hangers.

A while back, I picked up a pair of Sony EX50 canal earphones. They sound great and they block out most of the surrounding noise. They were under $30. I don't see the point in spending big money for earphones that you're going to use in the gym. All that sweat will mess them up over time. I've got another more expensive pair of canal earphones that I use at work/home.

I hate earbuds of any sort--can't stand the feeling of something in my ear---I use decent--but replaceable--over-the-ear old-school types. Does the job and I don't worrry about sweat--you can replace the pads or just buy a new pair.

If you do decide to go with Sennheiser please make sure that you are purchasing them from an authorized reseller! Their (Sennheiser 's) headphones/earphones/earbuds/etc. are one of the most frequently 'counterfeited' ones out there- so you'll end up getting subpar audio if you purchase some that are a 'steal.' (ebay/amazon marketplace)

Shure EC3 with the hard plastic in ear adapters, those are a bit weird to get used to but after 2,3 times wearing they fit perfect, take out 90% of your suround sound and deliver a mighty bass and crystal clear mid high range, awesome in ear piece.... I go jogging with them and they dont move at all plus the cable is very long, very handy...

If you do decide to go with Sennheiser please make sure that you are purchasing them from an authorized reseller! Their (Sennheiser 's) headphones/earphones/earbuds/etc. are one of the most frequently 'counterfeited' ones out there- so you'll end up getting subpar audio if you purchase some that are a 'steal.' (ebay/amazon marketplace)

I've had three pairs...

Didn't know that. But anyway I get mine at the computer store they cost $99 plus taxes